Transient Tachypnea of Newborn

  • Etiology: Delayed pulmonary fluid resorption due to lack of a vaginal squeeze in infants born via caesarean section or precipitous vaginal delivery
  • Imaging CXR:
    — Normal lung volumes and prominent fine interstitial markings with or without pleural effusion which resolves in 1-2 days
    — Initially it is radiographically indistinguishable from Group B Streptococcus pneumonia
  • DDX: Initially radiographically indistinguishable from Group B Streptococcus pneumonia which does not resolve within 24-48 hours
  • Complications:
  • Treatment: None
  • Clinical:

Radiology Cases of Transient Tachypnea of Newborn

CXR of transient tachypnea of the newborn
Initial CXR AP (above) shows normal lung expansion and fine interstitial infiltrates bilaterally. No pleural effusion is seen. CXR AP taken 1 day later (below) shows interval complete resolution of the previously seen fine interstitial infiltrates.
CXR of transient tachypnea of the newborn
CXR on day 1 (above) shows normal lung volumes and fine interstitial infiltrates which have resolved on the CXR from day 2 (below).